Home / 33,406.88-46,080.64-21,485.76

Finding the Fourth Proportional to 33,406.88, 46,080.64 and 21,485.76

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Solution

The fourth proportional to 33,406.88, 46,080.64 and 21,485.76 is: 29,636.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,406.88 : 46,080.64 = 21,485.76 : x
  2. Step 2: Convert to fraction form
    33,406.88/46,080.64 = 21,485.76/x
  3. Step 3: Cross multiply
    33,406.88x = 46,080.64 × 21,485.76
  4. Step 4: Simplify right side
    33,406.88x = 990,077,571.69
  5. Step 5: Solve for x
    x = 990,077,571.69/33,406.88
  6. Step 6: Final answer
    x = 29,636.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.